ASP.NET MVC在控制器中分別用Get和post模式調用天氣url返回數據亂碼，asp.netmvc

ASP.NET MVC在控制器中分別用Get和post模式調用天氣url返回數據亂碼，asp.netmvc

ASP.NET MVC在控制器分別中用Get和POST模式調用天氣url返回數據亂碼

！！！已解決，分享分享！！！

感謝大神：Daniel Cai

感謝大神：顧曉北 

 post方法，本人不知道，如果有大神知道，請指導！！

//用UTF-8轉碼有漢字參數的url
        protected string UrlUtf_8(string url)
        {
            byte[] bs = Encoding.GetEncoding("UTF-8").GetBytes(url);
            StringBuilder sb = new StringBuilder();
            for (int i = 0; i < bs.Length; i++)
            {
                if (bs[i] < 128)
                    sb.Append((char)bs[i]);
                else
                {
                    sb.Append("%" + bs[i++].ToString("x").PadLeft(2, '0'));
                    sb.Append("%" + bs[i].ToString("x").PadLeft(2, '0'));
                }
            }
            return sb.ToString();
        }
        //用UrlGB2312轉碼有漢字參數的url
        protected string UrlGB2312(string url)
        {
            byte[] bs = Encoding.GetEncoding("GB2312").GetBytes(url);
            StringBuilder sb = new StringBuilder();
            for (int i = 0; i < bs.Length; i++)
            {
                if (bs[i] < 128)
                    sb.Append((char)bs[i]);
                else
                {
                    sb.Append("%" + bs[i++].ToString("x").PadLeft(2, '0'));
                    sb.Append("%" + bs[i].ToString("x").PadLeft(2, '0'));
                }
            }
            return sb.ToString();
        }
//get方法  這裡url的模擬地址為http://wthrcdn.etouch.cn/weather_mini?city=北京
        public string GetFunction(string url)
        {
            string serviceAddress = url;
            //HttpWebRequest類繼承於WebRequest，並沒有自己的構造函數，需通過WebRequest的Creat方法 建立，並進行強制的類型轉換 
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
            request.ContentType = "text/html;charset=UTF-8";
            request.Method = "GET";
            //通過HttpWebRequest的GetResponse()方法建立HttpWebResponse,強制類型轉換 
            HttpWebResponse response = (HttpWebResponse)request.GetResponse();
            //GetResponseStream()方法獲取HTTP響應的數據流,並嘗試取得URL中所指定的網頁內容 
            Stream myResponseStream = response.GetResponseStream();
            //站點在響應的時候用gzip壓縮過了,用using (var gStream = new GZipStream(myResponseStream, CompressionMode.Decompress)){}解壓 
            using (var gStream = new GZipStream(myResponseStream, CompressionMode.Decompress))
            {
                //Encoding.GetEncoding("UTF-8")轉碼
                StreamReader myStreamReader = new StreamReader(gStream, Encoding.GetEncoding("UTF-8"));
                string retString = myStreamReader.ReadToEnd();
                myStreamReader.Close();
                response.Close();
                myResponseStream.Close();
                return retString;
            }
        }